KR102163610B1 - Soil condition evaluation device, corresponding method and corresponding program - Google Patents

Abstract

In the soil condition evaluation apparatus, the soil condition evaluation method, and the soil condition evaluation program according to the present invention, a heat distribution image in the pavement to be evaluated is acquired, the temperature of the pavement is acquired, and the obtained heat distribution of the pavement Based on the image and the acquired temperature of the pavement, an evaluation value indicating the degree of reducibility in the soil of the pavement is obtained.

Description

Soil condition evaluation device, corresponding method and corresponding program

The present invention relates to a soil condition evaluation apparatus, a soil condition evaluation method, and a soil condition evaluation program for evaluating the condition of the soil in the field from the viewpoint of reducibility.

Since crops are generally grown in soil, the condition of the soil affects the yield and quality of the crops. In particular, there is a tendency for the frequency of damage to crops to occur due to the influence of global warming in recent years and to impair its integrity. On the other hand, the environment for agricultural management is difficult, and reduction of production cost is required. For this reason, it is desirable to appropriately evaluate the condition of the soil and appropriately implement countermeasures according to the evaluation result, and a technique for appropriately evaluating the condition of the soil is desired.

A technique for evaluating such a state of the soil is disclosed in Patent Document 1, for example. The soil analysis method disclosed in this patent document 1 is a soil analysis method that analyzes the amount of nutrients for growing various crops in a predetermined soil, a step of cutting a predetermined soil to a predetermined depth and collecting a sample, and a sample collected Is treated with a treatment liquid containing a strong acid to obtain an extract, and the obtained extract is chemically analyzed by an ion chromatography device to accurately grasp the amount of nutrients in the soil.

By the way, in the soil analysis method disclosed in Patent Document 1, since a sample is actually collected from the soil and chemically analyzed by an ion chromatography device, it is considered that the nutrient amount of the soil can be analyzed relatively accurately. And, in the patent document 1, in the paragraph "sampling, it is only necessary to perform the sampling at a plurality of appropriately distributed locations so that necessary data can be collected from the entire farm so that accurate analysis results are obtained, but the four corners and diagonal lines of the entire farm It is preferable to use a total of 6 points of any two points on the image as sampling points. 」

On the other hand, when evaluating a so-called reduction disorder, there are few cases that occur throughout the packaging, and many cases occur in various places in the packaging. For this reason, as in the soil analysis method disclosed in Patent Document 1, if a sample is sampled from the soil to evaluate the reduction disorder, the sample must be sampled at a large number of locations over the entire field, resulting in a lot of labor and inefficiency. In the first place, sampling a sample from the soil itself is laborious.

Japanese Patent Publication No. 2014-106089 (Japanese Patent No. 5331325)

The present invention is an invention made in view of the above circumstances, and an object thereof is to provide a soil condition evaluation apparatus, a soil condition evaluation method, and a soil condition evaluation program capable of more efficiently evaluating the degree of reducibility.

In the soil condition evaluation apparatus, the soil condition evaluation method, and the soil condition evaluation program according to the present invention, a heat distribution image in the pavement to be evaluated is acquired, the temperature of the pavement is acquired, and the obtained heat distribution of the pavement Based on the image and the acquired temperature of the pavement, an evaluation value indicating the degree of reducibility in the soil of the pavement is obtained.

The above and other objects, features, and advantages of the present invention will become apparent from the following detailed description and accompanying drawings.

1 is a diagram for explaining a correlation between occurrence of a reduction disorder in a field and a temperature of a crop.
2 is a diagram for illustrating a configuration of a soil condition evaluation system in an embodiment.
3 is a diagram showing an evaluation material conversion information table stored in a soil condition evaluation device of the soil condition evaluation system.
4 is a flow chart showing the operation of the soil condition evaluation apparatus of the soil condition evaluation system.
5 is a schematic diagram showing a temperature distribution image of a package as an example.
6 is a diagram showing an evaluation value map obtained based on a temperature distribution image of a package schematically shown in FIG. 5.
FIG. 7 is a diagram showing a material quantity map calculated based on the evaluation value map shown in FIG. 6.

Hereinafter, an embodiment according to the present invention will be described based on the drawings. In addition, configurations denoted by the same reference numerals in each drawing indicate the same configuration, and description thereof is omitted as appropriate. In the present specification, in the case of a generic term, a subscript is denoted by a reference sign, and when an individual configuration is indicated, a subscript is denoted by a reference sign.

(Correlation)

First, the correlation between the degree of reducibility in the field and the temperature of the crop will be described based on one experimental example.

1 is a view for explaining a correlation between occurrence of a reduction disorder in a field and a temperature of a crop. FIG. 1A is a diagram showing a heat distribution image of a rice field, and FIG. 1B is a diagram showing an average value of ear water in rice grown in the rice field. The faucet of the test subject was a lime N sphere shown on the left side of the paper, which is an area where 20 kg of lime nitrogen was supplied per 10 are (a) as a material to improve the reduction obstacle, and on the right side of the ground, the area where the above material was not supplied. It was divided into the indicated control. In the faucets of these lime N spheres and control spheres, water is drawn in from the "water inlet" shown above the ground, flows from above the ground to the bottom of the ground, and is drained from the "water outlet". Each of the lime N spheres and the control spheres is divided into three sections in the horizontal direction of the ground, and 6 sections in the vertical direction of the ground, and is divided into sub-areas of 3×6=18. The average value of the number of ears of rice is a value obtained by the average of the number of ears of rice grown in one sub-region, and is shown in Fig. 1B in units of pieces/m ² . In the heat distribution image of the faucet shown in Fig. 1A, the darker the color in gray scale, the higher the heat radiation from the faucet, in other words, the temperature of the faucet, in other words, the temperature of the rice is high. When the heat distribution image of the faucet shown in FIG. 1A was captured, the temperature of the surrounding environment of the faucet was 31.2°C.

In Fig. 1B, in the control on the right side of the paper, there are 9 sub-areas with an average number of ears of rice of 400 /m ² units, and 8 sub-areas with an average number of ears of rice of 500 /m ² units. , On the other hand, there is one sub-area with an average number of ears of rice of 600/m ² units, whereas in the lime N sphere on the left side of the ground, there are ² sub-areas with an average number of ears of rice of 400/m ² Isaacs number average value is 4 to 500 / m ² delivery sub-region of one, the average number of ears of rice 600 / m ² the delivery sub-region 12 atoms. Therefore, the lime N spheres have a small degree of reducibility in most areas and suppressed the occurrence of reduction disorders, and as a result, rice was grown smoothly. On the other hand, in contrast to the control, the degree of reducing property is increased in various places, and reduction disorder occurs in various places, and the growth of rice is not smooth. In the control group, especially in the nine sub-areas shown by surrounding by ○ in Figure 1b, the number of ears of rice is 435 / m ² to 498 / m ² by an average of the sub-region, apparently the growth defect by reducing interference Became.

On the other hand, looking at this from the heat distribution image, as shown in Fig. 1A, the number of sub-regions with relatively high heat (the temperature of the faucet is high, the temperature of the rice is high) is smaller in the lime N sphere than in the control, as shown in FIG. It can be seen that the temperature of the water field (the temperature of rice) in the control was lower than the temperature of the water field (the temperature of the rice) in the control. In particular, the temperature of the water field (the temperature of rice) in the nine sub-regions indicated by enclosing by ○ in FIG. 1B is obviously higher than the temperature of the water field (the temperature of the rice) of the adjacent lime N sphere.

This is, in lime N spheres, due to the material of calcareous nitrogen, the degree of reducibility is small in most areas, and the occurrence of reduction obstacles is suppressed. As a result, rice grows smoothly, although the temperature is relatively hot at 31.2°C. , Moisture is transported to the entire rice field, and the amount of transpiration from the pores is smooth, and therefore, it is considered that the temperature of the rice field (the temperature of the rice) is lowered. , If reduction disorder occurs in the above places, and the growth of the rice is not smooth, and the temperature is relatively hot at 31.2°C, moisture is not transported to the whole rice, and the amount of transpiration from the pores decreases. It is considered that this is because the (rice temperature) has increased.

In this way, a correlation is confirmed between the degree of reducibility in the field and the temperature of the crop.

(Soil condition evaluation system (S) (heat distribution image generating apparatus (M), soil condition evaluation apparatus (P))

2 is a diagram for illustrating a configuration of a soil condition evaluation system in an embodiment. 3 is a diagram showing an evaluation material conversion information table stored in a soil condition evaluation device of the soil condition evaluation system.

From these findings, the soil condition evaluation device according to the present embodiment is a device for evaluating the condition of the soil, a heat distribution image acquisition unit that acquires a heat distribution image in the pavement to be evaluated, and the temperature of the pavement. The degree of reducibility in the soil of the pavement based on the pavement temperature acquisition unit to be acquired, the heat distribution image of the pavement acquired by the heat distribution image acquisition unit and the temperature of the pavement acquired by the pavement temperature acquisition unit A soil reducing property evaluation unit for obtaining an evaluation value representing In such a soil condition evaluation device, the heat distribution image acquisition unit (thermogram) generates a heat distribution image (thermogram) showing the heat distribution as a drawing by photographing infrared rays emitted from the pavement to be evaluated. A graph or an infrared camera) itself may be sufficient. In the following, as an example, the heat distribution image acquisition unit is a communication interface unit that wirelessly receives a heat distribution image in a package to be evaluated from the heat distribution image generating device. For example communication card etc.).

More specifically, in Fig. 2, the soil condition evaluation system S includes a heat distribution image generating device M, and a soil condition evaluation device connected in a wireless communication manner with the heat distribution image generating device M ( P) is provided.

The heat distribution image generating device M is a device that generates a heat distribution image SP in the package AR to be evaluated. The heat distribution image generating device M is installed at the tip of a long rod such as a pole, and generates a heat distribution image SP of the packaging in which the packaging AR is overlooked from above, or the packaging If there is a relatively tall building adjacent to (AR), a heat distribution image SP of the pavement may be generated from the building, but in this embodiment, an aircraft is provided and a heat distribution image SP of the pavement from above. ).

More specifically, as shown in FIG. 2, the heat distribution image generating device M includes a GPS 21, a temperature measuring unit 22, a control unit 23, and a heat distribution image generating unit 24. Wow, a storage unit 25, a communication interface unit 26, and an aircraft 27 are provided.

The aircraft 27 is a device that flies in the atmosphere, and is, for example, a balloon, an airship, an airplane, a helicopter, and a multicopter. The aircraft 27 may be a manned aircraft, but is preferably a radio-controlled flight (guided flight) or an unmanned aerial vehicle (drone) by autonomous flight. The aircraft 27 is connected to the control unit 23 in the present embodiment and flies according to the control of the control unit 23 by guided flight or autonomous flight.

GPS (Global Positioning System) 21 is connected to the control unit 23, and according to the control of the control unit 23, the position of the aircraft 27 by a satellite positioning system for measuring the current position on the earth. It is a device that measures (Pap), and outputs the positioning result (position (Pap) (latitude Xap, longitude Yap, altitude Zap)) to the control unit 23. Further, the GPS 21 may be a GPS having a correction function for correcting errors such as DGSP (Differential GSP).

The temperature measurement unit 22 is connected to the control unit 23 and is a temperature sensor that measures the air temperature Ts of the packaging according to the control of the control unit 23, and controls the temperature Ts of the measurement result. Output as In this embodiment, since the air temperature Ts of the pavement is measured by the temperature measuring unit 22 mounted on the aircraft 27, it is preferable that the aircraft 27 fly at a relatively low altitude. In addition, if the temperature of the pavement (Ts) measured by the temperature measurement unit 22 mounted on the aircraft 27 is different from the actual temperature (Tr) of the pavement on the ground, it is mounted on the aircraft 27 The difference between the air temperature of the pavement (Ts) measured by the temperature measuring unit 22 and the actual air temperature (Tr) of the pavement on the ground is measured by a plurality of samples in advance for each altitude of the aircraft 27, and this By using the result, the air temperature Ts of the pavement measured by the air temperature measuring unit 22 mounted on the aircraft 27 may be corrected to become the actual air temperature Tr of the pavement on the ground.

The heat distribution image generation unit 24 is connected to the control unit 23, and under the control of the control unit 23, photographs infrared rays emitted from the package AR to be evaluated, and shows the heat distribution as a drawing. It is a heat distribution image generating device (thermograph, infrared camera) that generates (thermogram) SP, and outputs the generated heat distribution image SP to the control unit 23. Such a heat distribution image generation unit 24, for example, an imaging optical system that forms an image by infrared rays in a package AR to be evaluated on a predetermined imaging surface, and arranges the light-receiving surface to match the imaging surface. Then, the infrared image sensor converts the image into an electrical signal, and the output of the infrared image sensor is converted into heat (temperature) by converting the amount of infrared radiation into heat (temperature). ) And an image processing unit that generates.

The communication interface unit (communication IF unit) 26 is a communication circuit connected to the control unit 23 and for performing wireless communication under the control of the control unit 23. The communication IF unit 26 transmits a communication signal that has received data to be transmitted input from the control unit 23, and uses a communication protocol used between the heat distribution image generating device M and the soil condition evaluation device P. Accordingly, it is generated, and the generated communication signal is transmitted to the soil condition evaluation apparatus P. The communication IF unit 26 receives a communication signal from the soil condition evaluation device P, extracts data from the received communication signal, and converts the extracted data into data in a format that the control unit 23 can process. Output to the control unit 23. The communication IF unit 26 is configured with, for example, a communication interface circuit conforming to the IEEE802.11 standard or the like.

The storage unit 25 is a circuit connected to the control unit 23 and storing various predetermined programs and various predetermined data under the control of the control unit 23. The various predetermined programs include, for example, a control program for controlling the respective units 21, 22, 24 to 27 of the heat distribution image generating apparatus M according to the functions of the respective units, or by the GPS 21. The positioning, the temperature measurement, and the imaging, respectively, the GPS 21, the temperature measurement so that the positioning, the temperature measurement by the temperature measurement unit 22, and the image pickup by the heat distribution image generator 24 are synchronized with each other. A data measurement program to be executed by each of the unit 22 and the heat distribution image generation unit 24, or the GPS 21, the temperature measurement unit 22, and the heat distribution image generation unit ( 24) Transmitting the positioning result (Pap) obtained in each, the temperature of the measurement result (Ts), and the heat distribution image (SP) generated by imaging from the communication IF unit 26 to the soil condition evaluation apparatus P as a communication signal. Control processing programs such as a data transmission program are included. The various types of predetermined data include data necessary for a process of capturing and generating a heat distribution image SP of a pavement, such as a communication address of the soil condition evaluation apparatus P, for example. The memory unit 25 includes, for example, a read-only memory (ROM) that is a nonvolatile memory device or an Electrically Erasable Programmable Read Only Memory (EEPROM) that is a rewritable nonvolatile memory device. Further, the storage unit 25 includes a random access memory (RAM), which is a working memory of the control unit 23 for storing data and the like generated during the execution of the predetermined program.

The control unit 23 controls the respective units 21, 22, 24 to 27 of the heat distribution image generating device M according to the functions of the respective units, and is in charge of overall control of the heat distribution image generating unit M Is to do. The control unit 23 includes the positioning, the temperature measurement, and the imaging so that the positioning by the GPS 21, the temperature measurement by the temperature measurement unit 22, and the imaging by the heat distribution image generation unit 24 are synchronized with each other. Each is executed by the GPS 21, the temperature measuring unit 22, and the heat distribution image generating unit 24, respectively. The control unit 23 generates a positioning result (Pap) obtained by each of the GPS 21, the temperature measurement unit 22, and the heat distribution image generation unit 24, the temperature Ts of the measurement result, and an image. The obtained heat distribution image SP is transmitted from the communication IF unit 26 to the soil condition evaluation apparatus P by a communication signal. The control unit 23 is configured with, for example, a CPU (Central Processing Unit) and peripheral circuits thereof.

Further, these GPS 21, temperature measurement unit 22, control unit 23, heat distribution image generation unit 24, storage unit 25, and communication IF unit 26 are mounted on the aircraft 27. , Is placed in a suitable location.

On the other hand, the soil condition evaluation device P, as shown in Fig. 2, is a communication IF unit 11, a control processing unit 12, a storage unit 13, an input unit 14, and an output unit ( 15).

The communication IF unit 11 is connected to the control processing unit 12, similarly to the communication IF unit 26, and is a communication circuit for performing wireless communication in accordance with the control of the control processing unit 12. The communication IF unit 11 is configured with, for example, a communication interface circuit conforming to the IEEE802.11 standard or the like.

As described later, the heat distribution image SP in the package AR to be evaluated and the temperature Ts of the package are acquired from the heat distribution image generating device M by the communication IF unit 11 Therefore, the communication IF unit 11 corresponds to an example of a heat distribution image acquisition unit that acquires a heat distribution image SP in the package AR to be evaluated, and obtains the temperature Ts of the package. It is also equivalent to an example of the temperature acquisition department.

The input unit 14 is connected to the control processing unit 12, and evaluates various commands, such as a command for instructing the start of evaluation, and, for example, the name of the package AR and the evaluation condition. It is a device for inputting various data necessary for the soil condition evaluation device P, for example, a plurality of input switches assigned with a predetermined function, a keyboard, a mouse, and the like. The evaluation conditions are predetermined conditions set in advance when the heat distribution image SP and the temperature Ts of the pavement are actually measured, and the set evaluation conditions stored in the set evaluation condition information storage unit 135 to be described later and Contrast. In the present embodiment, the set evaluation condition is a condition for determining whether or not an evaluation value is significantly obtained by the soil reducing property evaluation unit 123 described later. In view of the process of reduction disorder described above, the set evaluation condition preferably includes that the temperature (Ts) of the pavement is equal to or higher than a predetermined temperature (Th), and in the present embodiment, the weather is sunny or sunny. It is sky and further includes those with a time of 9 to 15:00. For this reason, the evaluation condition includes the temperature (Ts) of the pavement. The temperature (Ts) of the pavement is measured by the temperature measuring unit 22, and the measured temperature (Ts) of the pavement is obtained from the heat distribution image generating device (M) in the communication IF unit (11). . Therefore, the communication IF unit 11 is also equivalent to an example of an evaluation condition accepting unit that accepts an evaluation condition from the outside. The predetermined temperature Th is set to an appropriate value such as 25°C, 28°C, and 30°C by taking into account the process of reduction disorder. Further, from the above, the evaluation conditions include weather and time. These weather and times are input from the input unit 14. Therefore, the input unit 14 corresponds to another example of an evaluation condition accepting unit that accepts an evaluation condition from the outside.

The output unit 15 is connected to the control processing unit 12, and according to the control of the control processing unit 12, the command or data input from the input unit 14, and the evaluation value obtained by the soil condition evaluation device P It is a device that outputs (EV), material quantity (MV), and the like, and is, for example, a display device such as a CRT display, an LCD, an organic EL display, and a printing device such as a printer.

Further, a touch panel may be formed from the input unit 14 and the output unit 15. In the case of configuring this touch panel, the input unit 14 is a position input device that detects and inputs an operation position such as a resistive film type or a capacitive type, and the output unit 15 is a display device. In this touch panel, a position input device is installed on the display surface of the display device, and one or more candidates for input contents that can be input to the display device are displayed, and the display position displaying the input contents desired by the user is touched. Then, the position is detected by the position input device, and the display content displayed at the detected position is input to the soil condition evaluation device P as the user's operation input content. In such a touch panel, since the user can intuitively understand the input operation, the soil condition evaluation apparatus P which is easy for the user to handle is provided.

Further, in the present embodiment, the temperature Ts of the package is obtained from the heat distribution image generating device M in the communication IF unit 11, but the operator measures it with a thermometer in the package AR, and the measured temperature May be input from the input unit 14 as the temperature Ts of the packaging. In particular, in the case of acquiring the heat distribution image SP of the pavement by installing the above-described heat distribution image generating device at the tip of the rod, or when acquiring the thermal distribution image SP of the pavement from an adjacent building, etc. The method is useful. Therefore, in this case, the input unit 14 corresponds to another example of a package temperature acquisition unit that acquires the temperature Ts of the package.

The storage unit 13 is a circuit connected to the control processing unit 12 and storing various predetermined programs and various predetermined data under the control of the control processing unit 12. The various predetermined programs include, for example, a control program that controls each unit (11, 13 to 15) of the soil condition evaluation device (P) according to the function of each unit, or the communication IF unit (11). A packaging temperature processing program that obtains the temperature (Tar) of the packaging based on the thermal distribution image (SP) of the packaging, or the thermal distribution image (SP) of the packaging obtained from the communication IF unit 11 and the temperature of the packaging ( Ts), based on a soil reducibility evaluation program that obtains an evaluation value (EV) representing the degree of reducibility in the soil of the pavement, or based on the evaluation value (EV) obtained from the soil reducibility evaluation program, the reducibility It includes a control processing program such as a material quantity processing program to obtain the material quantity (MV) for improvement. The various predetermined data include, for example, the communication address of the heat distribution image generating device M, the heat distribution image SP of the package, and the temperature distribution Tar of the package from the heat distribution image SP of the package. Temperature conversion information, packaging temperature distribution information (Tarp), evaluation value conversion information to obtain an evaluation value (EV) from the difference between the packaging temperature (Tar) and the packaging temperature (Ts), and packaging reducibility evaluation map (EVm) , And data necessary for evaluating the soil condition of the pavement such as material quantity conversion information for obtaining the pavement material quantity map (MVm) from the pavement reducibility evaluation map (EVm), and the pavement material quantity map (MVm). . The storage unit 13 includes, for example, a ROM or an EEPROM. Further, the storage unit 13 includes a RAM or the like that serves as a working memory of the so-called control processing unit 12 for storing data and the like generated during execution of the predetermined program. And, in order to store each of these above-described information, the storage unit 13 functionally includes a heat distribution information storage unit 131, a temperature distribution information storage unit 132, a reducibility evaluation information storage unit 133, and material amount information. A storage unit 134, a setting evaluation condition information storage unit 135, and a conversion information storage unit 136 are provided.

The heat distribution information storage unit 131 stores a heat distribution image (heat distribution image data) SP of the packaging. In the present embodiment, the heat distribution information storage unit 131 is a heat distribution image generation unit (in order to generate the heat distribution image SP of the package received from the communication IF unit 11) and the heat distribution image SP. The position Pap of the positioning result of the GPS 21 obtained in synchronization with the imaging of 24) and the temperature Ts of the measurement result of the temperature measuring unit 22 are stored in correspondence with each other.

The temperature distribution information storage unit 132 stores a temperature distribution image Tarp of the packaging. In the present embodiment, the temperature distribution information storage unit 132 uses the temperature conversion information by the packaging temperature processing unit 122 to be described later, so that the temperature distribution image (Tarp) of the packaging obtained based on the heat distribution image (SP) of the packaging. Remember ). The temperature distribution image (Tarp) of this package is matched with the location (Pap) and the temperature of the package (Ts) corresponding to the heat distribution image (SP) of the package used when obtaining this, and is stored in the temperature distribution information storage unit 132. I remember.

The reducibility evaluation information storage unit 133 stores the reducibility evaluation map EVm of the packaging. In this embodiment, the reduction evaluation information storage unit 133 uses the evaluation value conversion information by the soil reducibility evaluation unit 123 described later, based on the temperature of the pavement (Tar) and the temperature of the pavement (Ts). The obtained pavement reducibility evaluation map (EVm) is memorized. The reducibility evaluation map (EVm) of this pavement is the location (Pap) and the temperature of the pavement (Ts) corresponding to the temperature distribution image (Tarp) of the pavement (that is, the heat distribution image (SP) of the pavement) used to obtain the pavement. ) And stored in the reduction evaluation information storage unit 133.

The material quantity information storage unit 134 stores the material quantity map (MVm) of the packaging. In the present embodiment, the material amount information storage unit 134 is a material amount map of the packaging obtained based on the reducibility evaluation map (EVm) of the packaging by using the material amount conversion information by the material amount processing unit 124 to be described later. I remember (MVm). The material quantity map (MVm) of this pavement is correlated with the position (Pap) corresponding to the reducibility evaluation map (EVm) (that is, the heat distribution image (SP) of the pavement) used when obtaining this, and the material quantity information storage unit ( 134).

The setting evaluation condition information storage unit 135 stores the setting evaluation condition. In this embodiment, as described above, the setting evaluation condition information storage unit 135 stores as one of the set evaluation conditions that the temperature Ts of the package is equal to or higher than the predetermined temperature Th, and It is memorized as another one of the above-described evaluation conditions that is a clear or clear sky and the time is from 9 o'clock to 15 o'clock.

The conversion information storage unit 136 stores the temperature conversion information, evaluation value conversion information, and material amount conversion information. These temperature conversion information, evaluation value conversion information, and material amount conversion information are each generated by measuring a plurality of samples in advance and statistically processing the measurement results, and stored in the conversion information storage unit 136. In addition, in this embodiment, the evaluation value conversion information and the material quantity conversion information can be combined in one table in a table format, and are stored in the conversion information storage unit 136.

The evaluation material conversion information table CT for registering the evaluation value conversion information and the material amount conversion information is, for example, as shown in FIG. 3, the temperature of the packaging (Tar) and the temperature (Ts) of the packaging. A difference ΔT field 311 for registering a car, an evaluation value field 312 for registering an evaluation value EV corresponding to the difference ΔT registered in the difference ΔT field 311, and this evaluation value field A material quantity field 313 for registering a material quantity corresponding to (in other words, a material quantity corresponding to the vehicle △T registered in the difference △T field 311) (MV) is provided, and the type of the evaluation value EV Has records according to the number of

The evaluation value EV is multi-stage, and includes evaluation indicating whether or not reduction disorder has occurred. More specifically, in the present embodiment, the evaluation value (EV) is four stages of “no reduction”, “weak reducibility”, “heavy reducibility” and “strong reducibility”, and the “no reduction” is "No occurrence" is indicated, and the "strongly reducing property" indicates "there is occurrence of reduction disorder".

Therefore, in this embodiment, the evaluation material conversion information table CT shown in FIG. 3 has four records. In the first record, the difference ΔT obtained by subtracting the temperature of the pavement (Ts) from the temperature of the pavement (Tar) by each field 311 to 313 is 0 or less (ΔT≦0), the evaluation It is registered that the value (EV) is no reducibility and that the amount of material (MV) is 0 [kg/10a] (0 kg per 10 are). In the second record, the difference ΔT obtained by subtracting the temperature of the pavement (Ts) from the temperature of the pavement (Tar) according to each field (311 to 313) is greater than 0 and less than Th1 (0<△ T≤Th1), the evaluation value (EV) is weakly reducible, and the material quantity (MV) is V1 [kg/10a] (V1 kg per 10 are). In the third record, the difference ΔT obtained by subtracting the temperature of the pavement (Ts) from the temperature of the pavement (Tar) by each field 311 to 313 is greater than Th1 and less than Th2 (Th1<△ T≤Th2), the evaluation value (EV) is heavy reducibility, and the material quantity (MV) is V2[kg/10a] (V2kg per 10 are). And, in the fourth record, the difference ΔT obtained by subtracting the temperature of the pavement (Ts) from the temperature of the pavement (Tar) by each field (311 to 313) is greater than Th2 (Th2<ΔT) ), the evaluation value (EV) is strongly reduced, and the material amount (MV) is V3[kg/10a] (V1kg per 10 are).

For example, Th1 is +1.5°C, +2°C, and +2.5°C, and Th2 is +3.5°C, +4°C, and +4.5°C, and Th1<Th2. For example, V1 is 10[kg/10a], V2 is 20[kg/10a], and V3 is 30[kg/10a], and V1<V2<V3.

The control processing unit 12 controls the respective units 11, 13 to 15 of the soil condition evaluation device P according to the functions of the respective units, and obtains an evaluation value EV and an amount of material (MV), It is in charge of overall control of the state evaluation device P. The control processing unit 12 is configured with, for example, a CPU (Central Processing Unit) and peripheral circuits thereof. In the control processing unit 12, by executing the control processing program, the control unit 121, the pavement temperature processing unit 122, the soil reducing property evaluation unit 123, and the material amount processing unit 124 are functionally configured.

The control unit 121 controls the respective units 11, 13 to 15 of the soil condition evaluation apparatus P according to the functions of the respective units. When the control unit 121 receives a heat distribution image (SP) of the package from the communication IF unit 11 by a communication signal from the heat distribution image generating device M, the heat distribution image of the package accommodated in the communication signal ( SP), the location (Pap), and the temperature (Ts) are correlated with each other and stored in the heat distribution information storage unit 131.

The packaging temperature processing unit 122 obtains a temperature Tar of the packaging based on the thermal distribution image SP of the packaging received from the communication IF unit 11. More specifically, the packaging temperature processing unit 122 uses the temperature conversion information stored in the conversion information storage unit 136 to determine each pixel in the thermal distribution image SP of the packaging as its pixel value. By converting to a temperature according to the above, an image (temperature distribution image) (Tarp) representing the temperature distribution of the packaging is obtained. Therefore, each pixel of the temperature distribution image Tarp of this package represents the temperature Tar of the package at the pixel position. Then, the packaging temperature processing unit 122 associates the obtained temperature distribution image Tarp with the position (Pap) and temperature (Ts) associated with the thermal distribution image SP of the packaging, Remember to (132).

The soil condition evaluation unit 123, based on the difference between the temperature distribution image Tarp of the pavement obtained by the pavement temperature processing unit 122 and the temperature Ts of the pavement received from the communication IF unit 11, The evaluation value (EV) of the packaging is obtained in multiple steps. More specifically, the soil condition evaluation unit 123 uses the evaluation value conversion information stored in the conversion information storage unit 136 to provide a temperature distribution image (Tarp) of the pavement and the temperature of the pavement (Ts). The difference of is converted into an evaluation value (EV). The conversion into the evaluation value EV may be performed for each pixel, but in the present embodiment, the soil condition evaluation unit 123 converts the temperature distribution image Tarp of the pavement into a sub-area SAR having a predetermined width set in advance. Classify, obtain a representative value of the temperature (Tar) for each of these sub-areas (SAR), obtain the difference between the temperature (Tar) of the obtained representative value and the temperature (Ts) of the packaging, and this difference is calculated as the evaluation value. It is converted into an evaluation value (EV) using the conversion information. In one heat distribution image SP, that is, one temperature distribution image Tarp corresponding to this, the temperature Ts of the pavement is regarded as the same throughout the pavement (in each sub-area SAR). do. Thereby, the reducibility evaluation map EVm to which the evaluation value EV(SAR) is given for each sub-area SAR is produced. The sub-area (SAR) may have any shape (for example, a triangle, a square, a hexagon, etc.) and an arbitrary area (0.5 are, 1 are, 2 are, etc.) as long as the packaging (AR) can be divided without a gap. , For example, it is a square of 5 m or 10 m on one side. The representative value may be, for example, an average value of all pixels in the sub-region SAR, and may be, for example, a median value of the sub-region SAR. Then, the soil reducibility evaluation unit 123 correlates the obtained reducibility evaluation map (EVm) with the location (Pap) and the temperature of the pavement (Ts) corresponding to the temperature distribution image (Tarp) of the pavement to evaluate the reducibility. It is stored in the information storage unit 133.

Here, in the present embodiment, the soil reducibility evaluation unit 123 satisfies the set evaluation conditions stored in the set evaluation condition information storage unit 135 in the evaluation conditions received from the communication IF unit 11 or the input unit 14 In the case of making, the evaluation value EV obtained as described above is calculated as the final evaluation value EV. More specifically, when the temperature (Ts) of the pavement received from the communication IF unit 11 is equal to or higher than the predetermined temperature (Th), the soil reducibility evaluation unit 123 determines the final evaluation value (EV). It is taken as a typical evaluation value (EV). In addition, in the present embodiment, when the heat distribution image SP of the pavement is a clear or clear sky and is captured at any time between 9:00 and 15:00, the evaluation The value (EV) is taken as the final evaluation value (EV).

The material amount processing unit 124 calculates the amount of material (MV) for improving the reducibility, based on the evaluation value EV obtained by the soil reducibility evaluation unit 123. More specifically, the material quantity processing unit 124 uses the material quantity conversion information stored in the conversion information storage unit 136 to determine the reducibility evaluation map (EVm) stored in the reducibility evaluation information storage unit 133. Each evaluation value (EV(SAR)) corresponding to each sub-area SAR is converted into a material amount (MV(SAR)). As a result, a material amount map MVm to which a material amount MV (SAR) is assigned for each sub-area SAR is produced. Then, the material amount processing unit 124 stores the obtained material amount map (MVm) in the material amount information storage unit 134 in correspondence with the position (Pap) associated with the reducibility evaluation map (EVm) of the packaging. do.

Next, the operation of the soil condition evaluation system S (heat distribution image generating apparatus M, soil condition evaluation apparatus P) according to the present embodiment will be described. 4 is a flowchart showing the operation of the soil condition evaluation apparatus of the soil condition evaluation system. 5 is a schematic diagram showing, as an example, a temperature distribution image of a package. 6 is a diagram showing an evaluation value map obtained based on a temperature distribution image of a package schematically shown in FIG. 5. FIG. 7 is a diagram showing a material quantity map calculated based on the evaluation value map shown in FIG. 6.

In such a soil condition evaluation system S, first, when the heat distribution image generating apparatus M and the soil condition evaluation apparatus P are powered on, respectively, they initialize necessary parts and start their operation. In the soil condition evaluation device P, by the execution of the control processing program, the control processing unit 12 includes a control unit 121, a pavement temperature processing unit 122, a soil reducing property evaluation unit 123, and a material quantity processing unit 124. ) Is functionally constructed.

The heat distribution image generating device M flies under the control of the control unit 23 by guided flight or autonomous flight, and captures an image of the package AR to be evaluated from above, and in synchronization with the imaging, the GPS 21 It is positioned by, and the temperature is measured by the temperature measuring unit 22. Then, the heat distribution image generating device M, by the control unit 23, the positioning result (Pap) obtained by each of the GPS 21, the temperature measuring unit 22, and the heat distribution image generating unit 24, The temperature Ts of the measurement result and the heat distribution image SP (not shown) generated by imaging are transmitted from the communication IF unit 26 to the soil condition evaluation apparatus P as a communication signal.

In Fig. 4, the soil condition evaluation device P is a positioning result Pap (position (Pap)) and temperature Ts of the measurement result in the communication IF unit 11 from the heat distribution image generating device M ( When the temperature of the pavement (Ts)) and the heat distribution image (SP) of the pavement are received and acquired, the acquired location (Pap), the temperature of the pavement (Ts), and the thermal distribution image (SP) of the pavement are correlated to each other, and the storage unit It is stored in the heat distribution information storage unit 131 of (13) (S11), and an evaluation condition is acquired by the control processing unit 12 (S12). This evaluation condition is, for example, after the operation of the soil condition evaluation device P, the input unit 14 receives the input of the evaluation condition, is stored in the storage unit 13, and stored in the storage unit 13 You may acquire the evaluation conditions. In addition, for example, the evaluation condition is evaluated by the input unit 14 when the location (Pap), the temperature of the packaging (Ts), and the thermal distribution image (SP) of the packaging are acquired from the heat distribution image generating device M. You may acquire by receiving the input of the condition. The input operation of this evaluation condition may be performed at predetermined time intervals (for example, every 30 minutes, every 1 hour, every 2 hours, etc.). In this embodiment, the weather and the time are input from the input unit 14 as one of the evaluation conditions. On the other hand, the temperature Ts of the package is also received by the communication IF unit 11 as another evaluation condition as described above.

Subsequently, the soil condition evaluation device P obtains the temperature of the pavement Tar based on the heat distribution image SP of the pavement by the pavement temperature processing unit 122 of the control processing unit 12 The distribution image Tarp is obtained and stored (S13). More specifically, the packaging temperature processing unit 122 uses the temperature conversion information stored in the conversion information storage unit 136 to determine each pixel in the thermal distribution image SP of the packaging acquired in processing S11. , By converting to a temperature corresponding to the pixel value, an image (temperature distribution image) Tarp representing the temperature distribution of the packaging is obtained. Then, the packaging temperature processing unit 122 stores the obtained temperature distribution image Tarp in the temperature distribution information storage unit 132 in association with the position Pap and the temperature Ts acquired in the processing S11.

Subsequently, the soil condition evaluation apparatus P obtains an evaluation value EV by the soil reducing property evaluation unit 123 of the control processing unit 12 (S14). More specifically, the soil reducibility evaluation unit 123 includes a temperature distribution image (Tarp) of the pavement obtained by the pavement temperature processing unit 122 in processing S13 and the temperature of the pavement (Ts) obtained in processing S11. Based on the difference, the evaluation value (EV) of the packaging is obtained in multiple steps. In more detail, the soil reducibility evaluation unit 123 calculates a representative value of the temperature Tar of the sub-area SAR for each of the plurality of sub-areas SAR separated by the pavement AR, and the processing S13 Obtained from the temperature distribution image (Tarp) of the pavement obtained in, the difference ΔT between the temperature (Tar) of the representative value obtained and the temperature (Ts) of the pavement is obtained, and this difference ΔT is obtained from the conversion information storage unit 136 ), it is converted into an evaluation value (EV(SAR)) using the evaluation material conversion information table (CT). Thereby, the reducibility evaluation map EVm is created.

Next, the soil condition evaluation device P determines whether the received evaluation condition satisfies the set evaluation condition stored in the set evaluation condition information storage unit 135 by the soil reducibility evaluation unit 123 ( S15). As a result of this determination, when the evaluation condition satisfies the set evaluation condition ("Yes"), the soil reducibility evaluation unit 123 calculates the evaluation value (EV) obtained in the process S14 as the final evaluation value (EV ), and when the evaluation condition does not satisfy the set evaluation condition (“No”), the soil reducibility evaluation unit 123 uses the evaluation value (EV) obtained in the process S14 as an error and the evaluation finally obtained. Do not use the value (EV). More specifically, the soil reducibility evaluation unit 123, whether the temperature (Ts) of the pavement obtained in the treatment S11 is equal to or higher than the predetermined temperature (Th), and the weather received in the treatment S12 is a clear or clear sky. It is determined whether or not the time received in the process S12 is from 9:00 to 15:00. As a result of this determination, the soil reducing property evaluation unit 123, the temperature Ts of the pavement obtained in the treatment S11 is equal to or higher than the predetermined temperature Th, and the weather received in the treatment S12 is clear or clear sky, In addition, the case where the time received in the process S12 is from 9 o'clock to 15 o'clock is determined as the case where the evaluation condition satisfies the set evaluation condition ("Yes"), and the soil reducibility evaluation unit 123 performs the processing S14 The evaluation value (EV) obtained by is taken as the finally obtained evaluation value (EV). On the other hand, as a result of the determination, the soil reducibility evaluation unit 123, the temperature (Ts) of the pavement acquired in the treatment S11 is not more than the predetermined temperature (Th), or the weather received in the treatment S12 is sunny, or When the sky is not clear, or the time received in the process S12 is not from 9:00 to 15:00 (i.e., the temperature (Ts) of the pavement obtained in the process S11 is higher than the predetermined temperature (Th), in the process S12 If the received weather is sunny or clear sky, and the time received in the processing S12 is from 9 o'clock to 15 o'clock, if any one of them does not hold), the evaluation condition does not satisfy the set evaluation condition. If it is not possible ("No"), the soil reducibility evaluation unit 123 does not use the evaluation value EV obtained in the process S14 as an error and the final evaluation value EV.

Next, the soil condition evaluation device P uses the soil reducibility evaluation unit 123 to calculate the evaluation value EV (reduction evaluation map EVm in the present embodiment) obtained in the treatment S14 as the determination result of the treatment S15, and The location (Pap) and temperature (Ts) acquired in the process S11 are matched and stored in the reducing property evaluation information storage unit 133 (S16).

Subsequently, the soil condition evaluation device P is for improving the reducing property based on the evaluation value EV obtained by the soil reducing property evaluation unit 123 by the material amount processing unit 124 of the control processing unit 12. The material quantity (MV) is obtained and stored (S17). More specifically, the material amount processing unit 124 uses the material amount conversion information stored in the conversion information storage unit 136 to each sub-area SAR of the reducibility evaluation map EVm obtained in processing S14. Each matched evaluation value (EV(SAR)) is converted into a material quantity (MV(SAR)). Then, the material amount processing unit 124 stores the obtained material amount map MVm in the material amount information storage unit 134 in association with the position Pap acquired in the processing S11.

Then, the soil condition evaluation device P outputs the evaluation value EV and the material amount MV for the pavement AR to be evaluated from the output unit 15 by the control processing unit 12 ( S18), the process ends. More specifically, the control processing unit 12 outputs from the output unit 15 the reducibility evaluation map EVm obtained in the processing S14 and the material amount map MVm in the processing S16 according to the determination result of the processing S15. More specifically, for example, the control processing unit 12 determines the evaluation value (EV) obtained in the process S14 (reduction evaluation map (EVm) in the present embodiment) in which the determination result of the process S15 is finally obtained. (In the present embodiment, in the case of using the reducibility evaluation map (EVm)), the reducibility evaluation map (EVm) obtained in the process S14 and the material amount map (MVm) in the process S16 are output from the output unit 15, and the control processing unit ( 12), when the determination result of the process S15 is an error, the setting evaluation condition is not satisfied, and an error is output from the output unit 15. In addition, when the determination result of the process S15 is an error, the control processing unit 12 does not satisfy the set evaluation condition and outputs the error from the output unit 15, and as reference information, the reducibility obtained in the process S14 The evaluation map EVm and the material quantity map MVm may be output from the output unit 15 in the process S16.

For example, from the heat distribution image SP in the package AR to be evaluated, for each pixel, the pixel value is converted using the temperature conversion information, so that the temperature distribution image shown in FIG. 5 ( Tarp) is obtained by treatment S13. In process S14, for each sub-region SAR of the temperature distribution image Tarp shown in FIG. 5, a representative value of the temperature Tar of the sub-region SAR is obtained, and the sub-region SAR is By converting the representative value of the temperature Tar using the evaluation material conversion information table CT, the reducibility evaluation map EVm shown in Fig. 6 is obtained. And in process S17, for each sub-area SAR of the reducibility evaluation map EVm shown in FIG. 6, the evaluation value EV(SAR) of the sub-area SAR is evaluated as the material conversion information table CT By converting using ), the material amount map (MVm) shown in FIG. 7 is obtained.

And the soil condition evaluation apparatus P, from the heat distribution image generating apparatus M, the positioning result (Pap) (position (Pap)), the temperature of the measurement result (Ts) (the temperature of the pavement (Ts)) and the pavement Each time a communication signal containing the heat distribution image SP of is received, the above-described processes S11 to S18 are executed. In the case of connecting a plurality of reducibility evaluation maps EVm (Par) according to each location (Pap) by such an operation, the plurality of reducibility evaluation maps EVm (Par) are these plurality of reducibility evaluation maps (EVm). (Par)) It is connected based on each position (Pap) corresponding to each. For example, for each of the plurality of reducibility evaluation maps EVm(Par), from the imaging direction (optical axis direction) of the heat distribution image generating unit 24, on the heat distribution image SP corresponding to the position Pap The position, that is, the position on the reducibility evaluation map EVm(Par) is obtained, and the angle of view of the heat distribution image generating unit 24, the position Pap, and the reducible evaluation map EVm corresponding to the position Pap From the position on (Par)), the position of the peripheral portion of the reducibility evaluation map EVm(Par) is obtained. Based on the respective positions of each peripheral part of each reducibility evaluation map EVm(Par) thus obtained, the positional relationship of each of these reducibility evaluation maps EVm(Par) is obtained, and each reducibility evaluation map EVm( Par)) is connected. In the case of connecting a plurality of material quantity maps (MVm (Par)) according to each location (Pap), a plurality of characters is performed by the same processing as the processing in the case of connecting the plurality of reducibility evaluation maps (EVm) described above. The discretionary map MVm(Par) is connected based on each location Pap corresponding to each of the plurality of material quantity maps MVm(Par).

As described above, the soil condition evaluation system S, the soil condition evaluation apparatus P, and the soil condition evaluation method and the soil condition evaluation program mounted therein in the present embodiment are the heat distribution image SP of the pavement. And based on the temperature (Ts) of the field, the evaluation value (EV) indicating the degree of reducibility in the soil of the field to be evaluated (AR) is obtained, so there is no need to sample a sample from the soil, and the heat distribution Since the image SP can obtain a relatively wide range at once by, for example, a heat distribution image generating device or the like, the degree of reducibility can be evaluated more efficiently.

From the above-described reduction obstacle process, the greater the difference between the temperature (Tar) of the packaging and the temperature (Ts) of the packaging, the greater the degree of reducibility. The soil condition evaluation system (S), the soil condition evaluation device (P), the soil condition evaluation method, and the soil condition evaluation program are based on the difference ΔT between the temperature of the pavement (Tar) and the temperature of the pavement (Ts). , Since the evaluation value EV is obtained in multiple steps, an appropriate evaluation value EV can be obtained.

Since the above-described soil condition evaluation system (S), soil condition evaluation apparatus (P), soil condition evaluation method, and soil condition evaluation program include an evaluation in which the evaluation value (EV) indicates the occurrence of reduction disorder, reduction disorder It is possible to determine the occurrence or absence of occurrence, and it is possible to know whether or not a reduction disorder occurs.

From the above-described reduction obstacle process, it is possible to evaluate the degree of reduction appropriately in the case of a relatively high temperature or a case of a clear sky. The soil condition evaluation system (S), the soil condition evaluation device (P), the soil condition evaluation method, and the soil condition evaluation program include the evaluation condition information storage unit 135 in which the evaluation condition received by the soil reducibility evaluation unit 123 is set. When the set evaluation condition stored in) is satisfied, the final evaluation value EV is obtained, so that a more appropriate evaluation value EV can be obtained.

The soil condition evaluation system (S), the soil condition evaluation device (P), the soil condition evaluation method, and the soil condition evaluation program evaluate the setting that the acquired temperature Ts of the pavement is equal to or higher than a predetermined temperature (Th). Since it is used as one of the conditions, it is possible to obtain a more appropriate evaluation value in consideration of the process of reduction disorder described above.

The soil condition evaluation system (S), the soil condition evaluation device (P), the soil condition evaluation method, and the soil condition evaluation program are those of the set evaluation conditions that the weather is sunny or sunny and the time is from 9:00 to 15:00. Since it is used as one, it is possible to obtain a more appropriate evaluation value in consideration of the process of reduction disorder described above.

The soil condition evaluation system (S), the soil condition evaluation apparatus (P), the soil condition evaluation method, and the soil condition evaluation program each obtain evaluation values for each of a plurality of sub-regions, thereby improving the two-dimensional spatial resolution. Can be used to evaluate the degree of reducibility that occurs throughout the packaging.

When the degree of reducibility has deteriorated, materials for improving the reducibility, such as calcareous nitrogen, are supplied to the pavement AR in preparation for the growth of the next crop. Previously, when a reduction failure occurred, the degree of reducibility was unclear, and thus materials were supplied to the entire packaging AR in a uniform amount. The soil condition evaluation system (S), the soil condition evaluation device (P), the soil condition evaluation method, and the soil condition evaluation program calculate the amount of material (MV) based on the evaluation value (EV). Materials can be supplied in packaging (AR). As a result, compared to the case of supplying the material to the packaging AR in a uniform amount, since the amount of material (MV) can be reduced, the cost can be reduced, and the cost-effectiveness can be improved. In particular, when the evaluation value EV (SAR) is required for each of the plurality of sub-areas (SAR), the amount of material (MV (SAR)) for each of the plurality of sub-areas (SAR) is Since each is obtained, the material can be supplied to the individual sub-areas SAR according to the degree of reducibility, so that the material can be supplied to the packaging AR more efficiently.

In addition, in the above-described embodiment, the material amount is obtained regardless of whether or not the set evaluation condition is satisfied, but only when the set evaluation condition is satisfied, the material amount may be obtained. That is, when the set evaluation condition is not satisfied, the execution of the process S17 for obtaining and storing the material amount is skipped.

In addition, in the above-described embodiment, the soil condition evaluation apparatus P acquired the heat distribution image SP from the heat distribution image generating apparatus M by wireless communication, but the heat distribution image generating apparatus M and The soil condition evaluation apparatus P is connected so that data can be exchanged with each other by a cable or the like, and the soil condition evaluation apparatus P acquires a heat distribution image SP from the heat distribution image generating apparatus M through the cable. You can do it. In this case, the heat distribution image acquisition unit is an interface unit that receives a heat distribution image SP in a package to be evaluated from the heat distribution image generation device M by wire. Further, the soil condition evaluation device P may acquire the heat distribution image SP from a server device that stores and manages the heat distribution image SP through a communication line. In this case, the heat distribution image acquisition unit receives the heat distribution image SP through a communication line from the server device that stores and manages the heat distribution image SP in the package AR to be evaluated. It is a communication interface. Moreover, the soil condition evaluation apparatus P may acquire the heat distribution image SP from the recording medium which recorded it. In this case, the heat distribution image acquisition unit is a storage device according to the storage medium that reads the heat distribution image SP from a recording medium in which the heat distribution image SP in the package AR to be evaluated is recorded ( For example, an HDD drive device or a CD-ROM drive device). Alternatively, when the recording medium is a USB memory or the like, the heat distribution image acquisition unit is a USB (Universal Serial Bus) interface unit.

Although this specification discloses techniques of various aspects as described above, the main techniques among them are summarized below.

A soil condition evaluation apparatus according to an embodiment includes a heat distribution image acquisition unit that acquires a heat distribution image in a pavement to be evaluated, a pavement temperature acquisition unit that acquires the temperature of the pavement, and the heat distribution image acquisition unit. A soil reducibility evaluation unit is provided for obtaining an evaluation value indicating the degree of reducibility in the soil of the pavement based on the acquired heat distribution image of the pavement and the temperature of the pavement acquired by the pavement temperature acquisition unit. Preferably, in the soil condition evaluation apparatus described above, the heat distribution image acquisition unit captures infrared rays emitted from the pavement to be evaluated, and generates a heat distribution image (thermogram) showing the heat distribution as a drawing. It is an image generating device (thermograph, infrared camera). In addition, preferably, in the soil condition evaluation apparatus described above, the heat distribution image acquisition unit is an interface unit that receives a heat distribution image in a pavement to be evaluated from the heat distribution image generation device by wire. In addition, preferably, in the above-described soil condition evaluation apparatus, the heat distribution image acquisition unit is a communication interface unit that wirelessly receives a heat distribution image in a pavement to be evaluated from the heat distribution image generating device (e.g. For example communication card etc.). Further preferably, in the above-described soil condition evaluation apparatus, the heat distribution image acquisition unit receives the heat distribution image through a communication line from a server device that stores and manages the heat distribution image in the pavement to be evaluated. It is a communication interface. Further preferably, in the soil condition evaluation apparatus described above, the heat distribution image acquisition unit is a storage device according to the storage medium that reads the heat distribution image from a recording medium in which the heat distribution image in the package to be evaluated is recorded. (For example, HDD drive device or CD-ROM drive device).

It is thought that so-called reduction disturbance occurs by the following process. That is, when hydrogen sulfide or organic acid is generated in the soil in the field of, for example, rice field, the elongation or activity of the root in crops such as rice is inhibited, and as a result, the growth of the crop is suppressed. The ability to suck up moisture from the crop is weakened. For this reason, for example, in the following relatively hot period, when the temperature increases, moisture is not transported to the whole crop, and the amount of transpiration from the pores decreases. As a result, the temperature of the crop itself (corresponding to body temperature in terms of human body temperature) cannot be sufficiently lowered, such as human heat stroke, resulting in poor growth or withering. When such a reduction disorder occurs, the yield of the crop decreases, and the quality thereof also deteriorates.

The inventors of the present invention have taken into consideration the process of such a reduction disorder, and found that whether or not the occurrence of a reduction disorder in the field is correlated with the temperature of the crop.

The soil condition evaluation device obtains an evaluation value indicating the degree of reducibility in the soil of the pavement based on the heat distribution image of the pavement and the temperature of the pavement, so that there is no need to sample a sample from the soil, and Since the distributed image can obtain a relatively wide range at once by, for example, a heat distribution image generating device or the like, the degree of reducibility can be evaluated more efficiently.

In another aspect, in the soil condition evaluation apparatus described above, further comprising a pavement temperature processing unit for obtaining a temperature of the pavement based on the heat distribution image acquired by the heat distribution image acquisition unit, and the soil reducibility evaluation unit, Based on the difference between the temperature of the packaging obtained by the packaging temperature processing unit and the temperature of the packaging obtained by the packaging temperature acquisition unit, the evaluation value is obtained in multiple steps.

From the above-described reduction obstacle process, the greater the difference between the temperature of the packaging and the temperature of the packaging, the greater the degree of reducibility. The soil condition evaluation apparatus obtains the evaluation value in multiple steps based on the difference between the temperature of the pavement and the temperature of the pavement, so that an appropriate evaluation value can be obtained.

In another aspect, in these above-described soil condition evaluation apparatuses, the evaluation value includes evaluation indicating whether or not a reduction disorder has occurred.

In such a soil condition evaluation apparatus, since the evaluation value includes an evaluation indicating whether or not a reduction disorder has occurred, it is possible to determine whether a reduction disorder has occurred, and whether or not a reduction disorder has occurred.

In another embodiment, in the above-described soil condition evaluation device, an evaluation condition storage unit for storing set evaluation conditions when the evaluation value is obtained by the soil reducibility evaluation unit, and an evaluation condition for receiving evaluation conditions from the outside. A receiving unit is further provided, and the soil reducing property evaluation unit obtains the evaluation value when the evaluation condition received by the evaluation condition receiving unit satisfies the set evaluation condition stored in the evaluation condition storage unit.

From the above-described reduction obstacle process, it is possible to evaluate the degree of reduction appropriately in the case of a relatively high temperature or a case of a clear sky. The soil condition evaluation device obtains an evaluation value when the evaluation condition received by the evaluation condition receiving unit in the soil reducibility evaluation unit satisfies the set evaluation condition stored in the evaluation condition storage unit, so that a more appropriate evaluation value can be obtained. .

In another embodiment, in the above-described soil condition evaluation apparatus, the evaluation condition storage unit stores, as one of the set evaluation conditions, that the temperature of the pavement acquired by the pavement temperature acquisition unit is equal to or higher than a predetermined temperature, and the The evaluation condition receiving unit includes the packaging temperature acquisition unit.

Such a soil condition evaluation apparatus can obtain a more appropriate evaluation value in consideration of the process of the reduction disorder described above.

In another embodiment, in the above-described soil condition evaluation apparatus, the evaluation condition storage unit stores as one of the set evaluation conditions that the weather is sunny or clear and the time is from 9:00 to 15:00, and the evaluation The condition receiving unit is an input unit that accepts data input from the outside.

Such a soil condition evaluation apparatus can obtain a more appropriate evaluation value in consideration of the process of the reduction disorder described above.

In another embodiment, in the above-described soil condition evaluation apparatus, the evaluation target pavement includes a plurality of divided sub-regions, and the soil reducibility evaluation unit calculates the evaluation value for each of the plurality of sub-regions, respectively. Seek.

Such a soil condition evaluation apparatus obtains evaluation values for each of a plurality of sub-regions, so that the two-dimensional spatial resolution can be improved, and the degree of reducibility occurring in various places in the pavement can be evaluated.

In another aspect, in the above-described soil condition evaluation apparatus, a material amount processing unit further includes a material amount processing unit for obtaining an amount of material for improving the reducibility based on the evaluation value obtained by the soil reducibility evaluation unit.

When the degree of reducibility has deteriorated, materials for improving the reducibility, such as lime nitrogen, are supplied to the packaging in preparation for the growth of the next crop. Previously, when a reduction disorder occurred, the degree of reducibility was unclear, and thus materials were supplied to the entire packaging in a uniform amount. Since the soil condition evaluation device obtains the amount of material based on the evaluation value, it is possible to supply the material to the pavement in a more appropriate amount. As a result, compared to the case of supplying the material to the packaging in a uniform amount, since the amount of material can be reduced, the cost can be reduced, and the cost-effectiveness can be improved. In particular, when the evaluation values are respectively required for each of the plurality of sub-areas, the amount of material is obtained for each of the plurality of sub-areas, so that the material can be supplied to each sub-area according to the degree of reducibility. Therefore, the material can be supplied to the packaging more efficiently.

The soil condition evaluation method according to another embodiment includes a heat distribution image acquisition step of acquiring a heat distribution image in a pavement subject to be evaluated, a pavement temperature acquisition step of acquiring the temperature of the pavement, and the heat distribution image acquisition step And a soil reducibility evaluation step of obtaining an evaluation value indicating a degree of reducibility in the soil of the pavement based on the heat distribution image of the pavement acquired in the pavement temperature acquisition step and the temperature of the pavement acquired in the pavement temperature acquisition step.

A soil condition evaluation program according to another embodiment includes, in a computer, a heat distribution image acquisition step of acquiring a heat distribution image in a field to be evaluated, a pavement temperature acquisition step of acquiring the temperature of the pavement, and the heat distribution On the basis of the heat distribution image of the pavement acquired in the image acquisition process and the temperature of the pavement acquired in the pavement temperature acquisition process, a soil reducibility evaluation process for obtaining an evaluation value indicating the degree of reducibility in the soil of the pavement It is a program to run.

Such a soil condition evaluation method and a soil condition evaluation program obtain an evaluation value representing the degree of reducibility in the soil of the pavement based on the heat distribution image of the pavement and the temperature of the pavement, so that a sample can be sampled from the soil. There is no need, and since a relatively wide range can be obtained at once by a heat distribution image generating apparatus or the like, for example, the degree of reducibility can be evaluated more efficiently.

This application is based on Japanese Patent Application No. 2016-94866 for which it applied on May 10, 2016, The content is incorporated herein.

In order to express the present invention, the present invention has been described appropriately and sufficiently through the embodiments while referring to the drawings in the above, but those skilled in the art should recognize that it is possible to easily change and/or improve the above-described embodiments. do. Accordingly, the modified form or the improved form carried out by those skilled in the art is interpreted as being included in the scope of the claim unless the modified form or the improved form is at a level that deviates from the scope of the claim described in the claims.

According to the present invention, a soil condition evaluation apparatus, a soil condition evaluation method, and a soil condition evaluation program can be provided.

Claims (10)

A heat distribution image acquisition unit that acquires a heat distribution image in the package to be evaluated;
A packaging temperature acquisition unit that acquires the temperature of the packaging;
Soil reducibility for obtaining an evaluation value representing the degree of reducibility in the soil of the pavement based on the heat distribution image of the pavement acquired by the heat distribution image acquisition unit and the temperature of the pavement acquired by the pavement temperature acquisition unit With an evaluation unit
Soil condition evaluation device. The packaging temperature processing unit according to claim 1, further comprising a packaging temperature processing unit that obtains a temperature of the packaging based on the heat distribution image acquired by the heat distribution image acquisition unit,
The soil reducibility evaluation unit, based on a difference between the temperature of the pavement obtained by the pavement temperature processing unit and the temperature of the pavement obtained by the pavement temperature acquisition unit, calculates the evaluation value in multiple steps.
Soil condition evaluation device. The method according to claim 1 or 2, wherein the evaluation value includes an evaluation indicating whether a reduction disorder has occurred.
Soil condition evaluation device. The evaluation condition storage unit according to claim 1 or 2, wherein the evaluation condition storage unit stores set evaluation conditions in the case of obtaining the evaluation value by the soil reducibility evaluation unit,
Further comprising an evaluation condition receiving unit for receiving evaluation conditions from outside,
The soil reducibility evaluation unit is configured to obtain the evaluation value when the evaluation condition received by the evaluation condition receiving unit satisfies the set evaluation condition stored in the evaluation condition storage unit.
Soil condition evaluation device. The method according to claim 4, wherein the evaluation condition storage unit stores, as one of the set evaluation conditions, that the temperature of the pavement acquired by the pavement temperature acquisition unit is equal to or higher than a predetermined temperature,
The evaluation condition receiving unit includes the packaging temperature acquisition unit
Soil condition evaluation device. The method according to claim 4, wherein the set evaluation conditions stored in the evaluation condition storage unit include weather and time,
The evaluation condition receiving unit is an input unit that receives data input from the outside.
Soil condition evaluation device. The method according to claim 1 or 2, wherein the packaging of the evaluation target includes a plurality of divided sub-areas,
The soil reducibility evaluation unit obtains each of the evaluation values for each of the plurality of sub-regions
Soil condition evaluation device. The method according to claim 1 or 2, further comprising a material amount processing unit for obtaining an amount of material for improving the reducibility based on an evaluation value obtained by the soil reducibility evaluation unit.
Soil condition evaluation device. A heat distribution image acquisition step of acquiring a heat distribution image in the package to be evaluated;
A packaging temperature acquisition process for acquiring the temperature of the packaging;
Soil reducibility for obtaining an evaluation value indicating the degree of reducibility in the soil of the pavement based on the heat distribution image of the pavement acquired in the heat distribution image acquisition process and the temperature of the pavement acquired in the pavement temperature acquisition process Equipped with an evaluation process
Methods of assessing the condition of the soil. A computer-readable program recording medium in which a program for causing a soil condition evaluation device to perform a soil condition evaluation method is recorded,
The soil condition evaluation method,
A heat distribution image acquisition step of acquiring a heat distribution image in the pavement to be evaluated by a heat distribution image acquisition unit of the soil condition evaluation device;
A pavement temperature acquisition step of acquiring the temperature of the pavement by a pavement temperature acquisition unit of the soil condition evaluation device;
Based on the heat distribution image of the pavement acquired in the heat distribution image acquisition step and the temperature of the pavement acquired in the pavement temperature acquisition step by the soil reducing property evaluation unit of the soil condition evaluation device, the soil of the pavement is A computer-readable program recording medium comprising a soil reducibility evaluation step for obtaining an evaluation value indicating the degree of reducibility in the.

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